wafer

wa·fer

W0004100 (wā′fər)n.1. A small, thin, crisp cake, biscuit, or candy.2. Ecclesiastical A small thin disk of unleavened bread used in the Eucharist.3. Pharmacology A flat, tablet of rice paper or dried flour paste encasing a powdered drug.4. A small disk of adhesive material used as a seal for papers.5. Electronics A small, thin circular slice of a semiconducting material, such as pure silicon, on which an integrated circuit can be formed.tr.v. wa·fered, wa·fer·ing, wa·fers 1. To seal or fasten together with a disk of adhesive material.2. Pharmacology To prepare in the form of wafers.3. Electronics To divide into wafers.

[Middle English wafre, from Anglo-Norman, variant of Old North French waufre, of Germanic origin; see webh- in Indo-European roots.]

wafer

(ˈweɪfə) n1. (Cookery) a thin crisp sweetened biscuit with different flavourings, served with ice cream, etc2. (Ecclesiastical Terms) Christianity a thin disc of unleavened bread used in the Eucharist as celebrated by the Western Church3. (Pharmacology) pharmacol an envelope of rice paper enclosing a medicament4. (Electronics) electronics a large single crystal of semiconductor material, such as silicon, on which numerous integrated circuits are manufactured and then separated5. (Printing, Lithography & Bookbinding) a small thin disc of adhesive material used to seal letters, documents, etcvb (tr) to seal, fasten, or attach with a wafer[C14: from Old Northern French waufre, from Middle Low German wāfel; related to waffle¹] ˈwafer-ˌlike, ˈwafery adj

wa•fer

(ˈweɪ fər)

n. 1. a thin, crisp cake or biscuit, often sweetened and flavored. 2. a thin disk of unleavened bread, used in the Eucharist. 3. a thin disk, esp. of dried paste, used esp. for sealing letters. 4. any small, thin disk, as a washer or piece of insulation. 5. a thin slice of semiconductor used as a base material on which single transistors or integrated-circuit components are formed. v.t. 6. to seal, close, or attach by means of a wafer. [1350–1400; Middle English wafre < Middle Dutch wafer, variant of wafel waffle¹]

wafer

Past participle: wafered
Gerund: wafering

Imperative
wafer
wafer

Present
I wafer
you wafer
he/she/it wafers
we wafer
you wafer
they wafer

Preterite
I wafered
you wafered
he/she/it wafered
we wafered
you wafered
they wafered

Present Continuous
I am wafering
you are wafering
he/she/it is wafering
we are wafering
you are wafering
they are wafering

Present Perfect
I have wafered
you have wafered
he/she/it has wafered
we have wafered
you have wafered
they have wafered

Past Continuous
I was wafering
you were wafering
he/she/it was wafering
we were wafering
you were wafering
they were wafering

Past Perfect
I had wafered
you had wafered
he/she/it had wafered
we had wafered
you had wafered
they had wafered

Future
I will wafer
you will wafer
he/she/it will wafer
we will wafer
you will wafer
they will wafer

Future Perfect
I will have wafered
you will have wafered
he/she/it will have wafered
we will have wafered
you will have wafered
they will have wafered

Future Continuous
I will be wafering
you will be wafering
he/she/it will be wafering
we will be wafering
you will be wafering
they will be wafering

Present Perfect Continuous
I have been wafering
you have been wafering
he/she/it has been wafering
we have been wafering
you have been wafering
they have been wafering

Future Perfect Continuous
I will have been wafering
you will have been wafering
he/she/it will have been wafering
we will have been wafering
you will have been wafering
they will have been wafering

Past Perfect Continuous
I had been wafering
you had been wafering
he/she/it had been wafering
we had been wafering
you had been wafering
they had been wafering

Conditional
I would wafer
you would wafer
he/she/it would wafer
we would wafer
you would wafer
they would wafer

Past Conditional
I would have wafered
you would have wafered
he/she/it would have wafered
we would have wafered
you would have wafered
they would have wafered

Thesaurus

Noun	1.	wafer - a small adhesive disk of paste; used to seal letterslibrary paste, paste - an adhesive made from water and flour or starch; used on paper and paperboard
	2.	wafer - a small thin crisp cake or cookie cookie, cooky, biscuit - any of various small flat sweet cakes (`biscuit' is the British term)
	3.	wafer - thin disk of unleavened bread used in a religious service (especially in the celebration of the Eucharist)bread, breadstuff, staff of life - food made from dough of flour or meal and usually raised with yeast or baking powder and then baked

Translations

威化饼薄脆饼干薄饼

wafer

(ˈweifə) noun a type of very thin biscuit, often eaten with ice-cream. 威化饼，薄脆饼干（常与冰淇淋同吃） ˌwafer-ˈthin adjective extremely thin. 极薄的

wafer

→ 薄饼zhCN

wafer

1. Christianity a thin disc of unleavened bread used in the Eucharist as celebrated by the Western Church 2. Pharmacol an envelope of rice paper enclosing a medicament 3. Electronics a large single crystal of semiconductor material, such as silicon, on which numerous integrated circuits are manufactured and then separated

wafer

[′wā·fər] (electronics) A thin semiconductor slice on which matrices of microcircuits can be fabricated, or which can be cut into individual dice for fabricating single transistors and diodes. (engineering) A flat element for a process unit, as in a series of stacked filter elements.

wafer

(1) A small magnetic tape cartridge in the early 1980s. See Stringy Floppy.

(2) The base unit of chip making. A wafer is a slice taken from a salami-like silicon crystal ingot up to 300 mm (11.8") in diameter. The larger the wafer, the more chips produced in a single production pass, which comprises a series of photomasking, etching and implantation steps. Wafers are approximately 1/30th of an inch thick; however, the actual layers of transistors that make up the active circuitry are only a few microns deep (see active area).

Wafers started out from one to three inches in diameter. Then came 100 mm ingots (3.9"), followed by 125 mm (4.9"), 150 mm (5.9"), 200 mm (7.9") and 300 mm (11.8"). The much larger 450 mm (17.7") wafer has yet to catch on due to the huge investment in new machinery. See chip, chip manufacturing, transistor and wafer scale integration.

The Boule Is Sliced

The silicon ingot, which is known as a "boule," is sliced into wafers. (Image courtesy of IBM.)

Different Sizes

From top to bottom, the wafers are 150, 200 and 300 mm (5.9", 7.9" and 11.8") in diameter. (Images from top to bottom courtesy of Texas Instruments, Inc., Advanced Micro Devices, Inc. and Intel Corporation.).

Different Sizes

From top to bottom, the wafers are 150, 200 and 300 mm (5.9", 7.9" and 11.8") in diameter. (Images from top to bottom courtesy of Texas Instruments, Inc., Advanced Micro Devices, Inc. and Intel Corporation.).

Different Sizes

From top to bottom, the wafers are 150, 200 and 300 mm (5.9", 7.9" and 11.8") in diameter. (Images from top to bottom courtesy of Texas Instruments, Inc., Advanced Micro Devices, Inc. and Intel Corporation.).

Heating the Wafers

The red glow comes from a furnace that reaches 1000 degrees centigrade. The semiconductor wafers are baked in the oven to prepare them for the chip-making process. (Image courtesy of Intel Corporation.)

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Words related to wafer

noun a small adhesive disk of paste

Related Words

noun a small thin crisp cake or cookie

Related Words

noun thin disk of unleavened bread used in a religious service (especially in the celebration of the Eucharist)

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